package com.kuang.config;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginHandlerlnterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        //登录成功之后  , 应该有用户的session
        Object loginUser = request.getSession().getAttribute("loginUser");

        if (loginUser==null){
            //说明没有登录
            request.setAttribute("msg","没有权限,请重新登录");
            request.getRequestDispatcher("/index.html").forward(request,response);
            return false;
        }else {
            return true;
        }

    }
}


